void bmo_triangulate_exec(BMesh *bm, BMOperator *op)
{
const int quad_method = BMO_slot_int_get(op->slots_in, "quad_method");
const int ngon_method = BMO_slot_int_get(op->slots_in, "ngon_method");
BMOpSlot *slot_facemap_out = BMO_slot_get(op->slots_out, "face_map.out");
BM_mesh_elem_hflag_disable_all(bm, BM_FACE | BM_EDGE, BM_ELEM_TAG, false);
BMO_slot_buffer_hflag_enable(bm, op->slots_in, "faces", BM_FACE, BM_ELEM_TAG, false);
BM_mesh_triangulate(bm, quad_method, ngon_method, true, op, slot_facemap_out);
BMO_slot_buffer_from_enabled_hflag(bm, op, op->slots_out, "edges.out", BM_EDGE, BM_ELEM_TAG);
BMO_slot_buffer_from_enabled_hflag(bm, op, op->slots_out, "faces.out", BM_FACE, BM_ELEM_TAG);
}
/* keep this operator fast, its used in a modifier */
void bmo_split_edges_exec(BMesh *bm, BMOperator *op)
{
const bool use_verts = BMO_slot_bool_get(op->slots_in, "use_verts");
BM_mesh_elem_hflag_disable_all(bm, BM_EDGE, BM_ELEM_TAG, false);
BMO_slot_buffer_hflag_enable(bm, op->slots_in, "edges", BM_EDGE, BM_ELEM_TAG, false);
if (use_verts) {
/* this slows down the operation but its ok because the modifier doesn't use */
BMO_slot_buffer_hflag_enable(bm, op->slots_in, "verts", BM_VERT, BM_ELEM_TAG, false);
}
/* this is where everything happens */
BM_mesh_edgesplit(bm, use_verts, true, false);
BMO_slot_buffer_from_enabled_hflag(bm, op, op->slots_out, "edges.out", BM_EDGE, BM_ELEM_TAG);
}
static int knifeproject_exec(bContext *C, wmOperator *op)
{
ARegion *ar = CTX_wm_region(C);
Scene *scene = CTX_data_scene(C);
Object *obedit = CTX_data_edit_object(C);
BMEditMesh *em = BKE_editmesh_from_object(obedit);
const bool cut_through = RNA_boolean_get(op->ptr, "cut_through");
LinkNode *polys = NULL;
CTX_DATA_BEGIN (C, Object *, ob, selected_objects)
{
if (ob != obedit) {
polys = knifeproject_poly_from_object(ar, scene, ob, polys);
}
}
CTX_DATA_END;
if (polys) {
EDBM_mesh_knife(C, polys, true, cut_through);
/* select only tagged faces */
BM_mesh_elem_hflag_disable_all(em->bm, BM_VERT | BM_EDGE | BM_FACE, BM_ELEM_SELECT, false);
/* not essential, but switch out of vertex mode since the
* selected regions wont be nicely isolated after flushing.
* note: call after de-select to avoid selection flushing */
EDBM_selectmode_disable(scene, em, SCE_SELECT_VERTEX, SCE_SELECT_EDGE);
BM_mesh_elem_hflag_enable_test(em->bm, BM_FACE, BM_ELEM_SELECT, true, false, BM_ELEM_TAG);
BM_mesh_select_mode_flush(em->bm);
BLI_linklist_freeN(polys);
return OPERATOR_FINISHED;
}
else {
BKE_report(op->reports, RPT_ERROR, "No other selected objects found to use for projection");
return OPERATOR_CANCELLED;
}
}
bool EDBM_op_call_and_selectf(
BMEditMesh *em, wmOperator *op,
const char *select_slot_out, const bool select_extend,
const char *fmt, ...)
{
BMOpSlot *slot_select_out;
BMesh *bm = em->bm;
BMOperator bmop;
va_list list;
char hflag;
va_start(list, fmt);
if (!BMO_op_vinitf(bm, &bmop, BMO_FLAG_DEFAULTS, fmt, list)) {
BKE_reportf(op->reports, RPT_ERROR, "Parse error in %s", __func__);
va_end(list);
return false;
}
if (!em->emcopy) {
em->emcopy = BKE_editmesh_copy(em);
}
em->emcopyusers++;
BMO_op_exec(bm, &bmop);
slot_select_out = BMO_slot_get(bmop.slots_out, select_slot_out);
hflag = slot_select_out->slot_subtype.elem & BM_ALL_NOLOOP;
BLI_assert(hflag != 0);
if (select_extend == false) {
BM_mesh_elem_hflag_disable_all(em->bm, BM_VERT | BM_EDGE | BM_FACE, BM_ELEM_SELECT, false);
}
BMO_slot_buffer_hflag_enable(em->bm, bmop.slots_out, select_slot_out, hflag, BM_ELEM_SELECT, true);
va_end(list);
return EDBM_op_finish(em, &bmop, op, true);
}
